JP3709876B2 - Parts supply system and method for assembly production line - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a component supply system and a component supply method for supplying assembly parts to a workpiece flowing through an assembly production line for assembling different types of workpieces on the same line.
[0002]
[Prior art]
Conventionally, when supplying an assembly part to be assembled to a workpiece flowing through an assembly production line such as an engine assembly line of an automobile, a number of parts shelves are provided along the assembly line. Various parts necessary for all types of workpieces flowing on the line are stored on the shelf, and the operator sequentially selects and takes out the necessary parts from the component shelf according to the flowing workpiece, and then assembles them to the workpiece. It is common to go.
[0003]
Various devices have been devised for more accurately supplying assembly parts to such an assembly production line. For example, JP 2000-203705A discloses parts mounted on a pallet truck of an automatic guided vehicle. A storage device is disclosed in which a photoelectric sensor is provided in each storage section of the storage shelf so as to detect that a component has been put in and out of each storage section.
[0004]
By the way, in recent years, for example, in an assembly production line such as an automobile engine assembly line, it is required to be a so-called mixed flow line in which various types of workpieces are assembled and produced on the same line in response to diversification of user's preference. ing. In such a mixed flow line, various types of workpieces are usually flowed in an irregular order that is not grouped by type or model, for example, in order of delivery.
[0005]
[Problems to be solved by the invention]
When a conventional parts supply system is applied to an assembly production line that is a mixed flow line, the operator is directed to work that is flowed in an irregular order that is not grouped by type or model. Correspondingly, each time, it is necessary to select and take out various parts necessary for workpieces of different models from the parts shelf, so that there is a problem that work efficiency is poor and work mistakes are likely to occur. Furthermore, it is also conceivable that an incorrect part is stored in the storage position of the parts shelf due to, for example, an error at the time of storing the assembly parts in the parts shelf. Furthermore, since a large number of parts shelves are provided in the vicinity of the assembly production line, it is inflexible, and when reorganization of assembly work on the assembly production line is performed, a major repair is required. There was also the difficulty that construction was necessary.
[0006]
The present invention has been made in view of the above technical problem. When supplying assembly parts to a work of an assembly production line that is a mixed flow line, the parts can be supplied efficiently and accurately, and the line change can be performed. The purpose is to improve flexibility.
[0007]
[Means for Solving the Problems]
For this reason, the assembly supply line parts supply system according to the present invention is based on the assembly production line parts supply system for assembling different types of workpieces on the same line, and outputs production management information including production sequence information of a plurality of workpieces. The host computer and the preset number of the above production management information are fetched as prior information prior to the actual part preparation work, and the same type of work included in the fetched production management information is extracted as the same model lot in a predetermined number of units. The parts are prepared in the order of the parts preparation work, including the parts preparation work order of these same model lots, the above-mentioned predetermined number, and the assembly part information relating to the type and quantity of the assembly parts to be assembled to the workpiece of the model for each model. Work instruction means for generating work instruction information and required types and number to be assembled in one work A plurality of set containers for storing assembly parts as a set of assembly parts, and a work station having a parts shelf for storing the assembly parts by type, based on the work instruction information, the same model In the order of the parts preparation work in lot units, a part set area in which the assembly part set for the workpiece of the corresponding model is input to the set container, and the assembly part set is input in the part set area. Each set container is provided with set container input means for returning the set container to the model order in accordance with the production order in the assembly production line and inputting the set container into the assembly production line.
[0008]
According to this configuration, workpieces of the same model included in the production management information are extracted as the same model lot in a predetermined number unit from the production order of the workpieces on the assembly production line and rearranged in the order of parts preparation work. Even if the production order of workpieces on the line is an irregular order that is not grouped by model, the assembly parts are accommodated in each set container in the part preparation work order in the part set area in the same model lot unit. It ’s fine. Therefore, the part preparation work can be done in batch units, and the work load related to the selection of parts can be reduced. Compared to the conventional method, the part preparation work for the assembly parts to be supplied to the workpiece is extremely efficient. This can be done and work errors can be reduced.
In addition, assembly parts of the required type and quantity to be assembled in one work are stored in a set container as a set of assembly parts, and returned to the model order according to the production order in the assembly production line. Since it is supplied to workpieces on the line, the burden associated with the incidental operations such as component selection and component removal is greatly reduced for the component assembly work on the workpiece. It can be done efficiently and work errors can be reduced.
Furthermore, since there is no need to provide a large number of parts shelves along the assembly production line, no major renovation work is required even when rearranging the assembly work of the assembly production line, and the flexibility of line change is also possible. Can greatly increase.
Furthermore, since the part preparation work can be separated from the part assembly work to the work, for example, the part preparation work is concentrated at one time, thereby creating a collective time and diverting it to other work, etc. It also becomes possible to increase flexibility in terms of working time.
[0009]
In the component supply system having the above-described configuration, the set container charging unit may specifically include a set container temporary storage unit that temporarily stores each set container that accommodates the assembly component set. preferable.
[0010]
In this case, the set containers in the part preparation work order in the same model lot unit may be temporarily stored in the set container temporary storage means and returned to the model order according to the production order on the assembly production line. it can. In addition, a large number of set containers that have been accommodated in assembled parts obtained by concentrating parts preparation work at a time can be temporarily stored in the set container temporary storage means. In particular, by setting the capacity of the set container temporary storage means (the storage capacity of the set container) to be larger, the flexibility with respect to the working time can be easily increased.
[0011]
Further, in the component supply system having the above configuration, a transport route for transporting the set container simultaneously with the workpiece corresponding to the workpiece flowing through the assembly production line is set, and a part of the transport route includes: More preferably, a set container temporary extracting means for temporarily extracting the set container from the transport route is provided.
[0012]
In this case, even if there is an area in the assembly production line where the set container cannot be transported so as to be substantially along the workpiece, the set container is temporarily removed from the transport route for such an area. Can be easily accommodated.
[0031]
The assembly production line parts supply method according to the present invention is based on the assembly production line parts supply method for assembling different types of workpieces on the same line, and the production management information including the production order information of a plurality of workpieces is received from the host computer. The output step and the above-mentioned production management information for the preset number of pieces are fetched as prior information prior to the actual part preparation work, and the workpieces of the same model included in the fetched production management information are made into the same model lot in a predetermined number unit. Extract and rearrange the parts in the order of parts preparation work. The parts preparation work order of these same model lots, the above-mentioned predetermined number, and the assembly part information regarding the type and quantity of the assembly parts to be assembled to the workpiece of the model for each model. A step of generating work instruction information including the required type and quantity to be assembled in one work Prepare multiple set containers to store attached parts as a set of attached parts, and use the same model based on the above work instruction information in a work area with parts shelves to store attached parts by type In the order of the parts preparation work in units of lots, the step of putting the assembly part set for the workpiece of the corresponding model into the set container, respectively, and the set container into which the assembly part set has been introduced, And a step of returning to the model order in accordance with the production order in the production line and putting it in the assembly production line.
[0032]
According to this method, workpieces of the same model included in the production management information are extracted as the same model lot in a predetermined number unit from the production order of the workpieces in the assembly production line, and rearranged in the order of parts preparation work. Even if the production order of workpieces on the line is an irregular order that is not grouped by model, the assembly parts are accommodated in each set container in the part preparation work order in the part set area in the same model lot unit. It ’s fine. Therefore, the part preparation work can be done in batch units, and the work load related to the selection of parts can be reduced. Compared to the conventional method, the part preparation work for the assembly parts to be supplied to the workpiece is extremely efficient. This can be done and work errors can be reduced.
In addition, assembly parts of the required type and quantity to be assembled in one work are stored in a set container as a set of assembly parts, and returned to the model order according to the production order in the assembly production line. Since it is supplied to workpieces on the line, the burden associated with the incidental operations such as component selection and component removal is greatly reduced for the component assembly work on the workpiece. It can be done efficiently and work errors can be reduced.
Furthermore, since there is no need to provide a large number of parts shelves along the assembly production line, no major renovation work is required even when rearranging the assembly work of the assembly production line, and the flexibility of line change is also possible. Can greatly increase.
Furthermore, since the part preparation work can be separated from the part assembly work to the work, for example, the part preparation work is concentrated at one time, thereby creating a collective time and diverting it to other work, etc. It also becomes possible to increase flexibility in terms of working time.
[0033]
In the component supply method having the above-described configuration, each set container is temporarily stored when the set container is returned to the model order in accordance with the production order in the assembly production line and is put into the assembly production line. Preferably stored in the means.
[0034]
In this case, the set containers in the part preparation work order in the same model lot unit can be temporarily stored in the storage means and returned to the model order according to the production order on the assembly production line. In addition, a large number of set containers that have been accommodated in the assembled parts obtained by concentrating parts preparation work at a time can be temporarily stored in the storage means. In particular, by setting the capacity of the storage means (the storage capacity of the set container) to be larger, the flexibility with respect to the working time can be easily increased.
[0035]
Further, in the component supply method having the above configuration, a transfer route for transferring the set container at the same time as the workpiece is set in the assembly production line corresponding to the workpiece flowing through the line. More preferably, a set container temporary extraction means for temporarily extracting the set container from the transport route is provided.
[0036]
In this case, even if there is an area in the assembly production line where the set container cannot be transported so as to be substantially along the workpiece, the set container is temporarily removed from the transport route for such an area. Can be easily accommodated.
[0055]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings, taking as an example the case where the present invention is applied to parts supply to an engine assembly line of an automobile.
The engine assembly line is configured as a so-called mixed flow line in which different types (models) of engines (workpieces) are assembled on the same line.
[0056]
FIG. 1 is an explanatory diagram schematically showing the overall configuration of an engine assembly line provided with a component supply system according to the present embodiment. FIG. 2 is an explanatory diagram showing an enlarged component set area in the component supply system. FIG. 4 is an explanatory view showing an enlargement of a replacement buffer, a production line (engine assembly line) and a temporary payout buffer in the above-described parts supply system, and FIG. It is explanatory drawing which shows an order.
[0057]
As shown in FIG. 1, in the component supply system according to the present embodiment, production management information relating to assembly is generated for a work W (engine) to be assembled and produced on the engine assembly line Lw, and this production management information is generated. Are sequentially output to the component supply network Np. The host computer 2 may be provided either outside or inside the engine assembly factory.
[0058]
The production management information includes production order information that defines the order in which many workpieces W are to be assembled. The production order is determined, for example, in the order of close delivery dates or in the order of early orders if the delivery dates are the same. Therefore, as shown by “production order” in FIG. 4, the models are arranged in an order that is not grouped. In other words, there is no regularity between order and model.
More preferably, the production management information includes, for each model of the workpiece W included therein, assembly component information for specifying the type and quantity of the assembly component to be assembled to the workpiece W of the model. It is.
[0059]
A work instruction server 6 is connected to the component supply network Np. The work instruction server 6 receives the production management information supplied to the parts supply network Np in advance by an arbitrary set number. That is, as will be described later, production management is performed for an amount (for example, 100 pieces) that precedes the workpiece W in which the part preparation work for the assembled part is actually performed in the part set area F by an arbitrarily set number. Information is fetched from the component supply network Np as preceding information.
At this time, as indicated by “production order” in FIG. 4, for example, a large number of workpieces W including four types of models A, B, C, and D are irregular and ungrouped. They are in order.
[0060]
Then, the work instruction server 6 rearranges the workpieces W of the same model included in the arbitrarily set number of pieces of preceding information in units of an arbitrary predetermined number to form a small lot of the same model. That is, as shown by “work order” in FIG. 4, for example, a large number of workpieces W including four types of models A, B, C, and D are in units of four small lots for each same model. For example, model A (first lot), model B (second lot), model C (third lot), model D (fourth lot), model A (fifth lot),... 1 lot).
[0061]
In this way, for the workpiece W in the preceding information, the extraction of the same model small lot in a predetermined number unit and the rearrangement of these same model small lots in the part preparation work order are performed.
In the present embodiment, the “predetermined number” constituting the same model lot is set to about 4 or less in consideration of the work efficiency in the part set area F, for example. It can be appropriately changed according to conditions such as ability. For example, when the work processing amount in the parts setting area F is secured sufficiently high, the “predetermined number” constituting the lot may be set more.
[0062]
In addition, the basic unit computer 4 is connected to the component supply network Np. In the basic unit computer 4, based on the assembly part information included in the production management information, the assembly parts to be assembled to the workpiece W of the model are assigned for each model A to D. That is, for each model A to D, a set of assembly parts to be accommodated in a component set container K described later is defined by each component code or the like. The parts set container K is a container that accommodates assembly parts of required types and quantities to be assembled to one work as one set of assembly parts.
[0063]
Further, in the basic unit computer 4, the assembly parts are allocated to the respective shelf fronts of the parts shelf H (described later) in the parts set area F. That is, the assembly parts stored in each shelf front are defined, and thereby, the parts box J (see FIG. 2) stored in each shelf front is determined.
The basic unit computer 4 outputs to the component supply network Np information regarding the allocation of the assembly component set for each model and the allocation of the assembly component to each shelf front.
[0064]
The work instruction server 6 takes in the production management information including the production order information output from the host computer 2 as described above as the preceding information, and receives each of the allocation information output from the basic computer 4. For the workpiece W included in the preceding information, the part preparation work order of the same model lot, the predetermined number constituting each same model lot, and the type and quantity of the assembly parts to be assembled to the workpiece of the model for each model And work instruction information including assembly part information.
[0065]
Then, this work instruction information is distributed to the device controller 10 in the component set area F. The device controller 10 controls devices in the component set area F, and includes, for example, a microcomputer as a main part. The work instruction information is managed by the device controller 10.
Incidentally, a memory device is provided in the basic unit computer 4 or the work instruction server 6, and assembly part information relating to the type and quantity of the assembly parts to be assembled to the workpiece of each model for each model is stored in the memory device in advance. It may be stored and used by reading it out as appropriate.
[0066]
The apparatus controller 10 is provided with a main operation panel 12 and a number of station management panels 16. In the part setting area F, for example, a plurality of (for example, 20 in this embodiment) set work stations S are provided, and a station management panel 16 corresponding to each set work station S is assigned to each set work station S. Yes. In the present embodiment, for example, one station management panel 16 is configured to manage two set work stations S.
[0067]
Each set work station S is provided with a parts shelf H for storing parts to be assembled to the work W. The component shelf H includes a plurality of shelf openings (four in the example of FIGS. 1 and 2) for storing various types of assembled components.
As described above, the allocation of the assembly parts to each shelf front is performed by the basic unit computer 4, and the parts box J (see FIG. 2) containing the predetermined assembly parts is assigned to the predetermined shelf front according to this allocation. Stored in
[0068]
In the parts set area F, a large number of parts set containers K are provided for accommodating assembling parts sets of assembling parts of required types and quantities to be assembled to one work W. In the component set area F, an assembly component set for a predetermined model is accommodated in each component set container K.
Each component set container K can be written and stored with information on the type and quantity of assembly parts to be accommodated in the container K (that is, assembly part information), and the data can be read out. An ID tag Tk (see FIG. 2), which is a kind of identification tag, is attached.
[0069]
The device controller 10 is connected to an ID writer 14 as writing means for writing assembly component information to be accommodated in the container K to the ID tag Tk of each component set container K, and receives from the device controller 10. Based on the assembly part information included in the work instruction information, the assembly part information can be written in the ID tag Tk of the part set container K. Then, before the assembly component set is put into and stored in the component set container K in the component set area F, the assembly component information is sequentially written into the ID tag Tk.
[0070]
To each set work station S in the parts set area F, the parts set containers K are sequentially supplied in units of four pieces constituting the same model lot. Based on the work instruction information, assembly parts sets for workpieces of the corresponding model are put into and stored in each part set container K in the same model lot unit and in the order of parts preparation work.
[0071]
Each set work station S is provided with various devices controlled and managed by the station management panel 16 so that the assembly component set can be accurately and efficiently put into the component set container K.
That is, each set work station S is provided with an ID reader 21 in the vicinity of the work setting position of each component set container K put into the set work station S, and the corresponding part set container is set by the ID reader 21. The assembly component information stored in the K ID tag Tk is read out.
[0072]
Further, in the vicinity of the work setting position of each component set container K, a container lamp 22 is disposed as a display control means for displaying the component set container K to be worked. The container lamp 22 blinks or lights up based on the assembly part information and the part preparation work sequence, so that the set container K to be assembled into which the assembly part is to be input is displayed.
Further, a container sensor 23 composed of, for example, an optical sensor is disposed in the vicinity of the work setting position of each of the component set containers K. By the container sensor 23, the parts to be assembled to the set container K are arranged. It is detected that the closing operation has been performed. In other words, the housing state of the parts in the set container K is detected.
In the container sensor 23, a plurality of optical sensors may be installed to detect in detail whether each assembly component housed in the component set container K is housed in a designated location.
[0073]
On the other hand, in each shelf front of each component shelf H of each set work station S, a shelf front lamp 24 as display control means for displaying the shelf front of the component shelf of the target part to be accommodated in the set container K to be worked. Is arranged. The shelf front lamp 24 blinks or lights on the basis of the assembly part information and the part preparation work sequence, so that the shelf front of the work target from which the assembly part is to be taken out is displayed.
Each shelf front of each of the component shelves H is provided with a shelf front sensor 25 made of, for example, an optical sensor. The shelf front sensor 25 assembles the shelf front from the component box J. It is detected that the part removal operation has been performed. In other words, the component removal state from each component box J of the component shelf H is detected.
[0074]
The container sensor 23 and the shelf front sensor 25 are both constituted by, for example, an optical sensor having a light emitting part and a light receiving part. Instead, the parts are put into the container or the shelf front part is stored. Other known detection means may be used as long as it can detect the removal of the component from the part.
[0075]
Further, a quantity indicator 26 is provided at each set work station S. From the display of the quantity indicator 26, the operator knows the number of parts set containers K put into the set work station S, that is, the number of workpieces constituting the same model lot (four in this embodiment). You can know the number of picking parts set.
[0076]
Furthermore, each set work station S is provided with an alarm buzzer 27 and a work completion button 28. The operation completion button 28 is used for the operator after completing the accommodating operation in the component set container K for each type of components included in the assembly component set to be loaded into the component set container K at the set operation station S. The work completion signal generated by the operation is input to the alarm buzzer 27 via the station management panel 16, for example.
[0077]
For the parts to be thrown in, after the order of the parts preparation work has come and the container lamp 22 and the shelf front lamp 24 start blinking, the work is performed in a state where the loading of the target parts into the parts set container K is not completed by the operator. When the operator presses the operation completion button 28 and the operation completion signal is output, the alarm buzzer 27 is activated and an alarm sound is generated, indicating that the operator has not completed the operation of inserting the target part, that is, “SET” “Forgot” is notified. The alarm buzzer 27 can be manually reset, and after the operator resets the alarm buzzer 27, the worker performs a required input operation or confirmation operation.
[0078]
In addition, when the container sensor 23 of the component set container K that is not a work target and the container lamp 22 is not blinking detects a part loading operation, and a shelf front that is not a loading target and the shelf front lamp 24 is not blinking. In any case, when the shelf front sensor 25 detects the picking (pickup) operation of the part, the alarm buzzer 27 is activated and an alarm sound is generated, and there is an error in the part loading / unloading work. The person is informed. That is, when at least one of the container sensor 23 as the component storage detection unit and the shelf front sensor 25 as the component removal detection unit detects a state different from the work instruction information, the worker of the set work station S is notified. It is like that.
[0079]
As described above, when the set container K is loaded into the set work station S in the parts setting area F, the set container K to be worked and the target parts to be accommodated in the container K based on the assembled part information. Since the storage section of the parts shelf H is displayed, the work load related to the part selection judgment is greatly reduced in the part preparation work, and the part preparation work for the assembly parts to be supplied to the workpiece W compared to the conventional case. Can be performed very efficiently and work errors can be reduced. In addition, the state in which the parts are taken out from the respective storage units of the parts shelf H of the set work station S and the state in which the parts are stored in the set container K are detected, and at least one of the states different from the work instruction information is detected. Then, the operator of the set work station S is notified, so that it is possible to eliminate work mistakes in the part preparation work.
[0080]
Further, a work completion button 28 that is operated after completion of the work of housing the parts to be assembled in the set container K is provided, and is set so that a work completion signal can be transmitted to the alarm buzzer 27. After the display by the lamp 24 is performed, the work completion button 28 is pushed and a work completion signal is transmitted even though the operation of putting the target part into the set container K is not completed, an alarm is issued. Since the operator is notified by the buzzer 27, it is possible to prevent not only mistakes but also forgetting the work itself in the work of picking up parts and putting them into the set container in the part preparation work.
[0081]
In particular, the operation completion button 28 is operated after completion of the storing operation in the component set container K for each type of assembly component, so that each type of assembly component is more finely detailed. Forgetting confirmation of work completion and forgetting work can be prevented.
[0082]
Furthermore, the container sensor 23 and the shelf front sensor 25 are provided with optical sensors, have high detection performance, and are provided with commercially available optical sensors, so that parts from each shelf front of the parts shelf H of the work station are provided. It is possible to easily and reliably detect the taken-out state and the storage state of the components in the component set container K.
[0083]
Also, in this case, in particular, the workpiece W of the same model included in the production management information is extracted as the same model lot in a predetermined number unit from the production order of the workpiece W on the assembly production line Lw and rearranged in the part preparation work order. Therefore, even if the production order of the workpieces W in the assembly production line Lw is an irregular order that is not grouped for each model, in the parts set area F, each part in the order of part preparation work in units of a predetermined number of the same model lot. What is necessary is just to accommodate an assembly | attachment component in the set container K. FIG. Therefore, the part preparation work can be done in batch units, and the work load related to the selection of parts can be reduced. Compared to the conventional method, the part preparation work for the assembly parts to be supplied to the workpiece is extremely efficient. This can be done and work errors can be reduced.
[0084]
In particular, the parts preparation work can be performed separately from the parts assembly work to the work, for example, the parts preparation work is concentrated at one time, thereby creating a collective time and diverting it to other work etc. It also becomes possible to increase the flexibility of the working time.
[0085]
In the part set area F, for example, a plurality of set work stations S configured as described above are provided, and each part set container K that accommodates a required set of assembled parts sequentially through the set work stations S includes: The parts are supplied to the downstream side (side closer to the assembly production line Lw) by the transport device Q1 in the order in which the parts preparation work is completed, that is, in the same model lot unit and in the parts preparation work order. As this transfer device Q1, for example, an automatic transfer carriage (so-called AGV) can be suitably used.
[0086]
On the downstream side of the parts set area F, a replacement buffer Rx is provided as a set container temporary storage means capable of temporarily storing a plurality of set containers K that contain a required set of parts to be assembled. As shown in detail in FIG. 3, the replacement buffer Rx is configured as a kind of automatic warehouse having a large number of storage shelves, and more preferably, at the entrance side, the ID tag Tk of each component set container K. An ID reader 31 for reading the model information stored in is arranged. The ID reader 31 is connected to a replacement buffer management board 30 that controls the operation of the replacement buffer Rx so as to be able to exchange signals.
[0087]
The replacement buffer management panel 30 is configured with, for example, a microcomputer as a main part, and all of the component set containers K each accommodating an assembly component set in the component set area F receive model information by the ID reader 31. After reading, it is temporarily stored in the replacement buffer Rx.
Then, the stored part set container K is returned to the model order according to the production order in the assembly production line Lw (see “production order” in FIG. 4), and is put into the assembly production line Lw. Yes.
[0088]
That is, an ID reader 32 for reading the model information stored in the ID tag Tw of the work W flowing through the assembly production line Lw is connected to the replacement buffer management panel 30 so as to be able to send and receive signals. The order of the model of the workpiece W that actually flows through the assembly production line Lw is obtained by the input signal. Note that the model order obtained from the input information from the ID reader 32 is the same as the production order information included in the production management information output from the host computer 2 described above.
[0089]
The replacement buffer management board 30 is arranged so that the parts set container K of the required model is dispensed in the order according to the input information from the ID reader 32, that is, in the order that matches the actual production order in the assembly production line Lw. The operation of the replacement buffer Rx is controlled.
A transfer device Q2 connected to the assembly production line Lw is disposed on the outlet side of the replacement buffer Rx, and a model corresponding to this production order in synchronization with the actual production order in the assembly production line Lw as described above. The component set containers K that are paid out in this order are sequentially fed to the assembly production line Lw by the transfer device Q2. For example, a roller type automatic conveyor can be suitably used as the transport device Q2.
[0090]
More preferably, an ID reader 41 that reads the model information stored in the ID tag Tk of each component set container K that is transported by the transport device Q2 is disposed in the transport device Q2. The ID reader 41 is connected to a model verification management panel 40 that performs model verification between the workpiece W of the assembly production line Lw and the component set container K so as to be able to send and receive signals.
Further, on the upstream side of the component supply point Ps in the assembly production line Lw, an ID for reading the model information stored in the ID tag Tw of the work W to be supplied with the component set container K next time at the component supply point Ps. A reader 42 is arranged. The ID reader 42 is connected to the model verification management board 40 so as to be able to send and receive signals.
[0091]
Then, by collating the input signals from both the ID readers 41 and 42, the workpiece W to which the component set container K is to be supplied next time at the component supply point Ps and the model of the supplied component set container K are collated. Is done. As a result of this collation, after confirming that both models match, the parts set container K is supplied to the work W. That is, on the assembly production line Lw, the component set container K is placed immediately next to the corresponding workpiece W and used for component assembly work. In this case, the assembly production line Lw itself corresponds to a conveyance route for conveying the component set container K at the same time as the workpiece W in the vicinity of the workpiece W flowing through the line Lw (corresponding to the workpiece W).
[0092]
As described above, the assembly parts of the required type and quantity to be assembled to one workpiece W are accommodated in the component set container K as one assembly component set and supplied to the workpiece W of the assembly production line Lw. In addition, since the parts set container K is placed immediately next to the corresponding workpiece W and used for the parts assembly work, the part selection work for the parts assembly to the work W, such as part selection and part extraction, etc. Therefore, the work of assembling the parts on the work W can be performed more efficiently and work mistakes can be reduced as compared with the prior art.
[0093]
In this case, since there is no need to provide a large number of parts shelves along the assembly production line, there is no need for large-scale renovation work even when reassembling the assembly work of the assembly production line. Flexibility can also be greatly increased.
[0094]
Further, in particular, by providing a replacement buffer Rx for temporarily storing each set container K containing each assembled part set on the downstream side of the part set area F, the part preparation work order can be changed in units of the same model lot. The component set container K can be temporarily stored in the replacement buffer Rx and returned to the model order according to the production order on the assembly production line Lw.
[0095]
Furthermore, it is possible to temporarily store a large number of component set containers K that have been accommodated in assembly parts obtained by intensively performing the component preparation work at one time in the replacement buffer Rx. In particular, by setting the capacity of the replacement buffer Rx (the storage capacity of the set container) to be larger, it is possible to easily increase the flexibility of the working time.
[0096]
In the assembly production line Lw, for example, a measurement station M for performing a leak test or the like of the assembled engine W is provided. In this measurement station M, in a state where the component set container K is placed right next to the workpiece W. Interference with the measuring device occurs, which hinders test measurement. Therefore, a temporary extraction buffer Ry as a set container temporary extraction means for temporarily extracting the component set container K from its conveyance route (that is, from the assembly production line Lw) is provided relatively near the assembly production line Lw.
[0097]
The temporary extraction buffer Ry is configured as a kind of automatic warehouse having a plurality of storage shelves, and more preferably, the model information stored in the ID tag Tk of each component set container K is stored on the entrance side. An ID reader 51 for reading is arranged. The ID reader 51 is connected to a temporary extraction buffer management panel 50 that controls the operation of the temporary extraction buffer Ry so as to exchange signals.
[0098]
The temporary extraction buffer management panel 50 is configured with, for example, a microcomputer as a main part, and all of the component set containers K that have come to a point immediately upstream of the measurement station M have read the model information by the ID reader 51. Above, it is temporarily stored in the temporary extraction buffer Ry.
The stored component set container K is returned to the assembly production line Lw immediately downstream of the measuring station M in the original order.
[0099]
Although not specifically shown in the temporary extraction buffer Ry, the component set container K is temporarily extracted from the assembly production line Lw on the upstream side of the measuring station M and stored in the storage shelf in the buffer Ry. A conveying device (for example, a roller type automatic conveyor) for returning the component set container K stored in the buffer Ry onto the assembly production line Lw immediately downstream of the measuring station M is provided.
[0100]
Further, at the point immediately downstream of the measuring station M, the ID tag Tw of the work W that has reached the point after the measurement is completed and the component set container K returned from the temporary extraction buffer Ry onto the assembly production line Lw. An ID reader 52 that reads model information stored in each ID tag Tk is provided. The ID reader 52 is connected to the temporary extraction buffer management board 50 so as to be able to send and receive signals, so that it can be confirmed whether or not the models of both are the same.
[0101]
The parts set container K returned from the temporary extraction buffer Ry onto the assembly production line Lw is as shown by an arrow U in FIGS. 1 and 3 when all the assembled parts are exhausted in the subsequent assembly process. Then, it is returned toward the parts setting area F as an empty container and is reused in the area F.
[0102]
As described above, since the part extraction container Ry for temporarily extracting the part set container K from the transport route is provided in a part of the transport route (assembly production line) for transporting the part set container K, the part set container is provided. Even when there is an area (for example, the measuring station M) in which K cannot be transported substantially along the workpiece W in the middle of the assembly production line Lw, the component set container K is temporarily removed from the transport route for such area. It is possible to easily cope with the problem by extracting it into
[0103]
The operation and control of the component supply system configured as described above will be described with reference to the flowcharts of FIGS.
As shown in FIG. 5, when the system is operated, the work instruction server 6 first takes in production management information including production order information output from the host computer 2 as preceding information (step # 11), and is included in this preceding information. The workpiece W is divided into small lots so as to constitute small lots of the same model, and the order of the parts preparation work is changed from the order of the production sequence information (step # 12). Also, each allocation information output from the basic unit computer 4 is received, and the assembly part information relating to the type and quantity of the assembly parts to be assembled to the workpiece of the corresponding model is associated with each small lot of the same model (step # 13). ).
[0104]
That is, parts preparation work order of the same model lot, the above-mentioned predetermined number constituting each same model lot, assembly part information regarding the type and quantity of assembly parts to be assembled to the workpiece of the model for each model, Work instruction information including is generated. Then, the work instruction information is distributed to the device controller in the component set area F (step # 14). The work instruction information is managed by the device controller 10.
[0105]
As shown in FIG. 6, in the component set area F, first, work instruction information including model information is written in the ID tag Tk of the empty component set container K using the ID writer 14 in the leading station S. (Step # 21), the parts set container K is transferred to the set work station S of the next process in units of work lots of the same model (Step # 22). In the set work station S into which the component set container K has been loaded, the work instruction information stored in the ID tag Tk of each component set container K is read using the ID reader 21 (step # 23).
[0106]
The assembly part information included in the work instruction information of the ID tag Tk and the assembly part information of the work instruction information distributed to the station management panel 16 of the set work station S are inquired (step # 24). It is determined whether or not there are target parts to be accommodated in the set container K (step # 25). If the determination result is YES (there is a target part), in step # 26, the shelf front lamp 24 of the target part and the container lamp 22 of the target container K flash, and the target part is taken out from the shelf front of the target part. The quantity of parts to be put into the container K is displayed on the quantity display 26.
[0107]
When the set operator picks a part from the parts shelf H, the shelf front sensor 25 detects this picking operation (step # 27). Then, it is determined whether or not the picked part is a part as instructed by blinking of the shelf front lamp 24 (that is, according to the instruction of the work instruction information) (step # 28).
[0108]
If the determination result is YES (as instructed), the container sensor 23 detects a component loading operation into the component setting container K (step # 29), and the container K into which the component has been loaded is indicated by the blinking of the container lamp 22. It is determined whether or not the container K is as instructed (that is, according to the instruction of the work instruction information) (step # 30). If the determination result is YES (as instructed), the set operator presses the work completion button 28 (step # 31). Thereafter, the steps after step # 25 are repeatedly executed.
[0109]
If the determination result in step # 28 or step # 29 is NO (different from the instruction), the alarm buzzer 27 sounds (step # 32 or step # 33), and there is an error in the picking operation or component loading operation. This is notified to the set operator. The worker who has received such notification resets the alarm buzzer 27, and then each step from step # 26 is executed again.
Although not specifically shown in the flowchart of FIG. 6, after the container lamp 22 and the shelf front lamp 24 start blinking, the operation is not completed after the target parts have been charged into the part set container K. As described above, when the completion button 28 is pressed, the alarm buzzer 27 is activated to generate an alarm sound, and the worker is informed that the operation of inserting the target part is not completed. .
[0110]
If there are no parts to be set after step # 25 and subsequent steps are repeated (step # 25: NO), in step # 34, the final set work station S in the parts set area F It is determined whether or not the work is completed. If the determination result is NO, each step after step # 22 is repeatedly executed.
On the other hand, if the determination result in step # 34 is YES, the component set container K that houses the assembled component set is stored in the replacement buffer Rx by the transport device Q1.
[0111]
On the downstream side of the part setting area F (side closer to the assembly production line Lw), as shown in FIG. 7, the ID reader 32 detects the model of the workpiece W on the assembly production line Lw (step # 41). A search for the component set container K for the model is performed in the replacement buffer Rx (step # 42). Then, the part set container K for the model is paid out and carried out toward the assembly production line Lw by the transport device Q2 (step # 43).
Then, after collating the model based on the read information of the ID readers 41 and 42, the component set container K is inserted so as to be synchronized with the workpiece W on the assembly production line Lw (step # 44).
[0112]
Thereafter, required assembly parts are assembled to the target workpiece W at each component assembly station of the assembly production line Lw (step # 45). Further, when there is a set container mixed flow non-permitted area (area) where the part set container K cannot be transported together with the corresponding workpiece W in the middle of the assembly production line Lw, for example, on the upstream side of the area. The component set container K is temporarily extracted from the line Lw, branched from the line Lw, and stored in the temporary extraction buffer Ry (step # 46).
[0113]
Next, the model of the corresponding workpiece W is detected by the ID reader 52 at the junction point downstream of the set container non-mixable area (for example, the measurement station M) (step # 47), and the component set container K for the model is assembled. Re-injection so as to synchronize with the production line Lw (step # 48). Thereafter, the component set container K, which is emptied after all the components of the assembly component set are assembled to the corresponding workpiece W, is collected toward the component set area F (step # 49).
[0114]
As described above, according to the component supply system according to the present embodiment, the workpiece W of the same model included in the production management information is determined in units of a predetermined number from the production order of the workpiece W on the assembly production line Lw. Since it is extracted as the same model lot and rearranged in the part preparation work order, even if the production order of the workpieces W on the assembly production line Lw is an irregular order that is not grouped for each model, the parts set area F has a predetermined What is necessary is just to accommodate an assembly | attachment component in each component set container K in order of component preparation work in units of the same model lot. Therefore, as part preparation work can be done in batch units, the work load related to the part selection judgment is reduced, and the part preparation work for the assembly parts to be supplied to the workpiece W is extremely efficient compared to the past. It can be done well and work errors can be reduced.
[0115]
Moreover, each component set container K containing the assembly component set is returned to the model order according to the production sequence in the assembly production line Lw and supplied to the workpiece W on the line Lw. Regarding the assembling work, the burden associated with the accompanying work such as part selection and part picking is greatly reduced, and the part assembling work to the workpiece W can be performed more efficiently and work errors can be reduced as compared with the conventional work.
[0116]
Next, another embodiment of the present invention will be described. The other embodiment is based on the above-described embodiment described with reference to FIGS. 1 to 7, and further, for example, in the storage location of the component shelf due to an error at the time of storing the assembly component in the component shelf. A function is added to detect an erroneous part at the stage of the part preparation work when an erroneous part has been stored.
In addition, in the following description, the same code | symbol is attached | subjected to what has the structure similar to the case in embodiment shown by FIGS. 1-7, and performs the same effect | action, and the further description is abbreviate | omitted.
[0117]
In this other embodiment, as shown in FIG. 8, on the end side of the component setting area F, on the downstream side of the terminal setting work station S, on the upstream side of the transfer device Q1 (see FIG. 1), Based on the part information recorded on the actual item slip 60 of the component box J stored in the component shelf H of the work station S, the actual item confirmation station for confirming whether or not the wrong assembled component is stored in the component shelf H. G is provided.
[0118]
The above-mentioned product slip 60 is attached to each part box J. The specification (type, size, material, etc.) and quantity of the assembly parts contained in the part box J, and part information such as a part code are displayed. For example, when the assembly parts are stored together with the parts box J in a predetermined shelf front of the parts shelf H, they are attached to the parts box J as they are. Held in the storage location.
[0119]
The actual product slip confirmation station G is provided with a barcode reader 61 that can read the component information recorded on the actual product slip 60 as a component recording medium. The barcode reader 61 includes an insertion slot 61a for inserting the actual product slip 60, a first discharge port 61b for discharging the actual product slip 60 in the case of confirmation OK (pass), and an actual product in the case of confirmation NG (failure). A second discharge port 61c for discharging the vote 60 is provided.
[0120]
The item tag 60 is held in the component box J in a state of being inserted into a holder (not shown) fixed to the component box J, and can be easily taken out on the front side of the shelf front of the component shelf H. Is positioned.
When the operator of the set work station S takes out the assembly parts in the parts box J for the first time after the parts box J is stored in the predetermined shelf front of the parts shelf H, not only the parts but also the parts The actual product slip 60 held by the holder of the box J is also taken out, and the taken actual product slip 60 is inserted into a holder Kh attached to the component set container K (see FIG. 9 described later). Accordingly, there may be a case where a plurality of actual product forms 60 are held in the actual product form holder Kh of one component set container K, or there may be no actual product form 60 at all.
[0121]
More preferably, the actual item slip confirmation station G records the actual item slip 60 held in the holder Kh of the component set container K and automatically supplies it to the barcode reader 61 as the component information reading means. A picking device 70 is provided as medium supply means.
[0122]
9 and 10 are a front explanatory view and a side explanatory view of the picking device 70. FIG. As shown in these drawings, the picking device 70 is provided above a conveying line 90 that sends a component setting container K in which a required assembly component is set from the component setting station S on the most downstream side further downstream. Yes.
[0123]
The picking device 70 includes a column part 71 disposed so as to straddle the conveyance line 90 having a large number of conveyance rollers 91, a base plate 72 fixed to the upper end of the column part 71, and the base plate 72. And a protective cover 74 having a frame portion 73 disposed on the upper side.
The base plate 72 extends sideways and is shared as a substrate on which the barcode reader 61 is placed.
[0124]
A base 75 for holding the chuck 80 via the first cylinder 81 is disposed on the base plate 72, and a second cylinder 82 for moving the base 75 in a direction orthogonal to the transport line 90 is disposed. It is installed. The chuck 80 holds the actual product slip 60 held by the holder Kh of the component setting container K, and is moved up and down in accordance with the up and down movement of the piston rod 81p of the first cylinder 81.
[0125]
A third cylinder 83 that can further move the chuck 80 up and down is attached to the base of the tip of the piston rod 81p of the first cylinder 81. The chuck 80 is connected to the piston rod 83p of the third cylinder 83. It is attached to the tip side (lower end side). 11 shows how the claw portion 80c of the chuck 80 is driven to open and close by the fourth cylinder 84, and FIG. 12 shows how the chuck 80 is rotated by the fifth cylinder 85 around the joint portion 80j. Show. Reference numeral 86 indicates a guide rod for guiding the vertical movement of the chuck 80 when the first cylinder 81 is operated, and reference numeral 87 indicates a guide rod for guiding the vertical movement of the chuck 80 when the third cylinder 83 is operated. ing.
[0126]
Each of the first, second, third, fourth and fifth cylinders 81, 82, 83, 84 and 85 is, for example, an air-driven cylinder device, more preferably a picking device. It is connected to 70 control units (not shown) so as to be able to exchange signals, and is driven in accordance with a control signal from the control unit.
[0127]
In the above configuration, a process in which the picking device 70 automatically takes out the actual product slip 60 from the holder Kh of the component setting container K and automatically inserts it into the barcode reader 61 will be described with reference to the flowchart of FIG.
When the component setting container K on the conveyance line 90 reaches below the picking device 70, for example, it is detected by a sensor (not shown) (step # 51: YES), and the chuck 80 of the picking device 70 moves to the component setting container K. The position of the base 75 is adjusted so as to be positioned directly above the holder Kh (step # 52), and then the first and third cylinders 81 and 83 move the chuck 80 downward. At this time, the chuck 80 moves down with the claw portion 80c open (steps # 53 and # 54).
[0128]
The chuck 80 reaches a position above the holder Kh of the component setting container K by a predetermined amount, that is, a position where the upper part of the actual product slip 60 can be gripped when the actual product slip 60 is held by the holder Kh. Then, the downward movement of the chuck 80 is stopped, and the claw portion 80c is closed (step # 55). At this time, if the actual product slip 60 is held in the holder Kh, the upper portion of the actual product slip 60 is automatically gripped by the claw portion 80c closed.
[0129]
When the closing operation of the claw portion 80c is completed, the chuck 80 is moved upward (step # 56) and returned to the initial position. In the middle of the base 75, for example, a light receiving portion 76b of a photoelectric sensor 76 composed of a light emitting portion 76a and a light receiving portion 76b is attached, and when the chuck 80 holds the actual product slip 60, The actual product slip 60 is detected by the sensor 76 (step # 57).
[0130]
If the chuck 80 is holding the actual product slip 60 (step # 57: YES), as illustrated in FIG. 12, the chuck 80 is rotated approximately 90 degrees by the fifth cylinder 85. The second cylinder 82 moves toward the barcode reader 61, and then the chuck 80 is lowered so as to fit the height of the insertion port 61a of the barcode reader 61 (steps # 58, # 59). As a result, the actual product slip 60 held by the chuck 80 is inserted into the insertion slot 61 a of the barcode reader 61 and the claw portion 80 c of the chuck 80 is opened, so that the actual product slip 60 is placed in the barcode reader 61. The automatic loading is performed (steps # 60 and # 61).
[0131]
Thereafter, the claw portion 80c is closed and the chuck 80 is returned to the original vertical state, and the picking device 70 returns to the original position (steps # 62, # 63, and # 64). If the photoelectric sensor 76 does not detect the actual product slip 60 (step # 57: NO), steps # 58 to # 63 are skipped, step # 64 is immediately executed, and the picking device 70 is moved to the original position. To come back.
[0132]
On the other hand, in the barcode reader 61 into which the actual product form 60 is inserted, the actual product form verification subroutine is executed. That is, the component information recorded on the actual product slip 60 is read, and the read component information is collated with the assembly component information corresponding to the component set container K based on the work instruction information from the work instruction server 6. Is done.
[0133]
When the actual product slip 60 is inserted into the bar code reader 61 and the actual product slip verification subroutine starts, reading of the barcode of the actual product slip 60 is started in step # 71 as shown in the flowchart of FIG. The barcode reading is more preferably started by a start instruction signal from the main operation panel 12 in the component setting area F.
[0134]
Next, it is determined whether or not the bar code can be identified in step # 72. If this is NO, an NG code is transmitted to the main operation panel 12 (step # 73). In this case, more preferably, step # 73 is executed only when the bar code cannot be identified even after a predetermined number of rereads, and this collation subroutine is terminated. In this case, the actual product form 60 is discharged from the second discharge port (NG discharge port) 61c.
[0135]
If the decision result in the step # 72 is YES, the container number of the component set container K is received from the ID reader 21 described later (step # 74), while the component number is read from the barcode (step # 75). ).
In step # 76, the work instruction information table from the work instruction server 6 is referred to search for the model and part number of the part set container K, and the part read from the part number and bar code based on the search result. The number is collated (step # 77).
[0136]
In addition, an ID reader 21 is disposed in the actual product slip confirmation station G so as to be positioned in the vicinity of the component set container K that has been transported to a position corresponding to the pickup device 70 (see FIG. 8). The assembly part information stored in the ID tag Tk of the corresponding part set container K can be read out by the ID reader 21. Accordingly, the assembly part information and the container number read by the ID reader 21 are used for collation in step # 77. Instead, the container number of the part set container K is selected from the main operation panel 12. Alternatively, the assembly part information may be received.
[0137]
If the collation result in step # 77 is NO, the actual product slip 60 is incorrect, so an NG code is transmitted to the main operation panel 12 (step # 78), and the collation subroutine ends. In this case, the actual product form 60 is discharged from the second discharge port (NG discharge port) 61c. In this case, since it is presumed that there was an error in storing the component box J in the shelf front of the component shelf H, the alarm buzzer 62 (see FIG. 8) is activated to notify the operator and correct the component error. Action is taken. The alarm buzzer 62 may be provided in the vicinity of the main operation panel 12. More preferably, a reset button operated after finishing the corrective action is provided in the vicinity of the alarm buzzer 62.
[0138]
On the other hand, if the determination result in step # 77 is YES, the read barcode data of the actual product slip 60 is transmitted to the work instruction server 6 via the main operation panel 12 (step # 79). It is recorded as local data in the barcode reader 61 (step # 80). Thereafter, an OK code is transmitted to the main operation panel 12 (step # 81), and the verification subroutine is terminated. In this case, the actual product form 60 is discharged from the first discharge port (OK discharge port) 61b.
[0139]
As described above, according to the present embodiment, the same operational effects as those of the embodiment described with reference to FIGS. 1 to 7 can be obtained, and in addition to this, the components are stored in the parts shelf H. It is possible to collate the actual product slip 60 in which the component information of the assembled component is recorded with the assembled component information corresponding to the component set container K based on the work instruction information, and notify the collation result. Even if there is no mistake, it is possible to prevent the wrong part from being set in the part set container K, and the part set container K in which such a wrong part is set to be put into the assembly production line Lw. In addition, if an incorrect parts box J has been stored in the storage location of the parts shelf H due to an error at the time of storing the assembly parts in the parts shelf H, such an error is reliably detected, Corrective action can be taken. In particular, after storing the parts box J of the assembled parts in the parts shelf H, by performing the above collation when the parts are first taken out, it is possible to eliminate wasteful parts removing work as much as possible.
[0140]
In addition, when the actual product slip 60 held in the holder Kh of the component set container K is taken out from the holder Kh and supplied to the barcode reader 61, it is automatically supplied by the pickup device 70. The work of taking out the actual product slip 60 from the holder Kh of the container K and supplying it to the barcode reader 61 can be saved, and the burden on the operator in the parts setting area F can be reduced.
[0141]
In the above-mentioned other embodiments, the actual product confirmation station G is provided at the terminal side of the component setting area F, that is, the most downstream side of the setting work station S. It is also possible to provide each directly downstream of the work station S. In this case, it can be detected very quickly that the wrong parts box J has been stored in the storage location of the parts shelf H, and corrective action can be taken immediately.
[0142]
Thus, it goes without saying that the present invention is not limited to the above embodiments, and various improvements or design changes can be made without departing from the scope of the invention.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram schematically showing the overall configuration of an engine assembly line including a component supply system according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing an enlarged component set area in the component supply system.
FIG. 3 is an explanatory view showing, in an enlarged manner, a replacement buffer, an engine assembly line, and a temporary extraction buffer in the component supply system.
FIG. 4 is an explanatory diagram showing production order information of a host computer and a part preparation work order in which the production order information is rearranged.
FIG. 5 is a part of a flowchart for explaining the operation of the component supply system.
FIG. 6 is a part of a flowchart for explaining the operation of the component supply system.
FIG. 7 is a part of a flowchart for explaining the operation of the component supply system.
FIG. 8 is an explanatory diagram showing an actual product slip confirmation station according to another embodiment of the present invention.
FIG. 9 is a front explanatory view of a picking apparatus according to another embodiment.
FIG. 10 is an explanatory side view of the picking device.
FIG. 11 is an explanatory side view showing the open / close state of the chuck of the picking apparatus.
FIG. 12 is an explanatory side view showing a rotating state of the chuck.
FIG. 13 is a flow chart for explaining automatic insertion of a product tag into a barcode reader by the picking device.
FIG. 14 is a flowchart for explaining an actual product slip verification subroutine executed in the barcode reader;
[Explanation of symbols]
2 ... Host computer
4. Basic unit computer
6 ... Work instruction server
10: Device controller
14 ... ID writer
16 ... Station management board
21, 31, 32, 41, 42, 51, 52 ... ID reader
22 ... Container lamp
23 ... Container sensor
24 ... Shelf front lamp
25 ... Shelf front sensor
26 ... Quantity indicator
27 ... Alarm buzzer
28 ... Work completion button
30 ... Replacement buffer management board
40 ... Model verification management panel
50 ... Temporary payout buffer management board
60 ... Invoice
61 ... Bar code reader
62 ... Alarm buzzer
70 ... Picking device
80 ... Chuck
A, B, C, D ... model
F ... Parts setting area
G ... Invoice check station
H ... Parts shelf
J ... Parts box
K ... Part set container
Kh ... (product tag) holder
Lw ... Assembly production line
M ... Measuring station
Q1, Q2 ... Conveying device
Rx ... Replacement buffer
Ry ... Temporary extraction buffer
S ... Set work station
Tk: ID tag for parts set container
Tw ... Work ID tag
W ... Work

Claims (6)

An assembly production line parts supply system for assembling different types of workpieces on the same line,
A host computer that outputs production management information including production sequence information of multiple workpieces;
The above-mentioned production management information for the preset number is imported as prior information prior to the actual part preparation work, and workpieces of the same model included in this imported production management information are extracted as the same model lot in units of a predetermined number of parts. Arrange the order of work, work instruction information including the parts preparation work order of these same model lots, the above-mentioned predetermined number, and the parts information of the parts to be assembled and the type and quantity of the parts to be assembled to the workpiece of each model Work instruction means to generate;
A plurality of set containers for accommodating assembly parts of a required type and quantity to be assembled in one work as a set of assembly parts;
The assembly part set for the workpiece of the corresponding model in the order of the part preparation work in the order of the part preparation in the same model lot unit based on the work instruction information based on the work instruction information. A parts set area for charging each of the set containers,
Each set container in which the assembly part set is input in the parts set area, a set container input means for returning to the model order according to the production order in the assembly production line and inputting the assembly to the assembly production line;
An assembly production line parts supply system characterized by comprising:   2. The parts supply for an assembly production line according to claim 1, wherein said set container charging means comprises set container temporary storage means for temporarily storing each set container containing said assembly part set. system.   In the assembly production line, a conveyance route for conveying the set container at the same time as the workpiece is set corresponding to the workpiece flowing through the line, and the set container is temporarily transferred from the conveyance route to a part of the conveyance route. 3. The parts supply system for an assembly production line according to claim 1 or 2, wherein means for temporarily extracting a set container is provided. An assembly production line parts supply method for assembling different types of workpieces on the same line,
Outputting production management information including production sequence information of multiple workpieces from a host computer;
The above-mentioned production management information for the preset number is imported as prior information prior to the actual part preparation work, and workpieces of the same model included in this imported production management information are extracted as the same model lot in units of a predetermined number of parts. Arrange the order of work, work instruction information including the parts preparation work order of these same model lots, the above-mentioned predetermined number, and the parts information of the parts to be assembled and the type and quantity of the parts to be assembled to the workpiece of each model Generating step;
A plurality of set containers for storing assembly parts of required types and quantities to be assembled in one work as a set of assembly parts are prepared, and a parts shelf for storing assembly parts by type is provided. In the work area, on the basis of the work instruction information, the step of putting the assembly part set for the workpiece of the corresponding model into each set container in the order of the part preparation work in the same model lot unit,
Returning each set container into which the assembly part set has been introduced to the model order according to the production order in the assembly production line, and injecting into the assembly production line;
A part supply method for an assembly production line, comprising: Each set container is temporarily stored in a storage means when the set container is returned to the model order according to the production order in the assembly production line and is put into the assembly production line. The method of supplying parts for an assembly production line according to claim 4 . In the assembly production line, a conveyance route for conveying the set container at the same time as the workpiece is set in correspondence with the workpiece flowing through the line, and the set container is temporarily transferred from the conveyance route to a part of the conveyance route. 6. The method of supplying parts for an assembly production line according to claim 4 or 5 , wherein means for temporarily extracting a set container is provided.

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